Aruba Instant AP | Troubleshooting Guide
37
The channel assignment settings is configured in
Configuration > Access Point > (Select Access Point)
> Radio
settings of the AP. Ensure that the radio is set to
Adaptive radio management assigned
for the
AP to dynamically change the broadcasting channel with respect to channel quality metrics.
Check RF Settings of the AP
The RF settings of the AP control the channel and transmission capabilities of the radio. Ensure that the
required capabilities are enabled on the AP.
The RF settings of the AP is configured by selecting
Show Advanced Options
in the
Configuration > RF
page in the Instant WebUI. The following table lists AP behaviors and the prescribed action to resolve them:
AP Behavior
Action
AP does not operate in the 80
MHz channel
Check if
80 MHz support
is enabled in
Access Point Control
settings.
AP does not operate on 40 MHz
channels
Check if
Wide Channel Bands
is enabled on the radio in
Access Point
Control
settings.
AP does not work on HT mode
Check if
legacy only
is enabled on the radio. This option is available in the
radio profile.
AP Changes Radio Channel Frequently
The following procedure describes how to troubleshoot issues, if the AP changes radio channel frequently:
1.
Check if Client Aware is Enabled
2.
Check the ARM Channel Change Logs to Identify the Reason for Channel Change
Check if Client Aware is Enabled
The client aware feature stops the AP from changing channels when a client is connected to the AP. Client
aware stops channel change only when clients are connected to the AP. If no client is connected, the AP will
continue to change channels to identify clients.
Navigate to
Configuration > RF
page in the Instant WebUI and ensure that
Client Aware
is enabled on
the AP.
Check the ARM Channel Change Logs to Identify the Reason for
Channel Change
Run the
show ap arm history
command to view ARM channel change events on the AP. Use the output of
this command to identify the cause for channel change.
The sample below displays the list of allowed channels for the AP, generated by the
show ap allowed
channels
command:
(Instant AP)# show ap arm history
Interface :wifi0
ARM History
-----------
Time of Change
Old Channel
New Channel
Old Power
New Power
Reason
Result
--------------
-----------
-----------
---------
---------
------
------
2020-04-29 01:50:33
100E
132E
18
18
I
Configured
2020-04-29 01:44:00
52E
100E
18
18
M
Configured
2020-04-29 01:38:41
116E
52E
18
18
I
Configured